Ctenotus schomburgkii
The barred wedge-snout ctenotus (Ctenotus schomburgkii) is a small skink native to Australia, characterized by its distinctive orange dots and brown and orange stripes. It inhabits a variety of environments, particularly those with spinifex grasses, and plays a role in controlling termite populations. This adaptable species is active during the day and has a lifespan of over five years.
Key Facts
- ›Found across central and western Australia, including New South Wales, Queensland, South Australia, Northern Territory, and Western Australia.
- ›Primarily feeds on termites but is a generalist insectivore, also consuming spiders, crickets, grasshoppers, and beetles.
- ›Active during the day, with bimodal activity patterns at the start and end of the day.
- ›Has a lifespan of over five years, with females generally living longer and being larger than males.
- ›Breeds during summer, typically laying clutches of two eggs, though sometimes one or three.
- ›Prefers habitats with spinifex grasses, which provide shelter and are associated with termite populations.
Barred Wedge-Snout Ctenotus
Australia
Spinifex Grasslands, Areas With Spinifex Grasses Under Trees
Small Skink, Up To 5 cm Long., Distinguishing Orange Dots Along Its Side., Brown and Orange Stripes On Its Back.
Termites, Spiders, Crickets, Grasshoppers, Beetles
- Bimodal Daily Activity Patterns, Active At the Start and End of the Day.
- Forages Widely.
- Longer Activity Time Than Larger Lizards of the Same Genus.
- Lives In Home Ranges of 40–60 Square Metres.
- Hides In Spinifex Tussocks To Avoid Predators.
Insectivore, Generalist
Varanus Gouldi, Cats
Habitat Fragmentation, Climate Change
About Ctenotus schomburgkii
Ctenotus schomburgkii: The Barred Wedge-Snout Ctenotus
The barred wedge-snout ctenotus, scientifically known as Ctenotus schomburgkii, is a small skink species native to Australia. It is characterized by its modest size, reaching up to 5 centimeters in length, and distinctive physical markings that include orange dots along its sides and brown and orange stripes adorning its back.
Habitat and Distribution
This adaptable lizard is widespread across central and western Australia, with its range encompassing parts of New South Wales, Queensland, South Australia, the southern Northern Territory, and southern Western Australia. Ctenotus schomburgkii thrives in varied habitats, demonstrating a particular affinity for areas featuring spinifex grasses. These grasses are crucial, providing not only shelter from predators but also supporting termite populations, a primary food source for the skink.
Diet and Behavior
As a generalist insectivore, the barred wedge-snout ctenotus primarily feeds on termites, but its diet also extends to spiders, crickets, grasshoppers, and beetles. They are ectothermic, relying on external heat sources such as solar radiation or conduction from warmed surfaces. Ctenotus schomburgkii exhibits bimodal daily activity patterns, being most active during the early and late parts of the day, and it forages widely. They possess a notable home range, typically between 40 to 60 square meters.
Life Cycle and Conservation
Breeding occurs during the Australian summer, with females generally laying clutches of two eggs, though clutch sizes can range from one to three. Females tend to be larger and live longer than males, with the species having a lifespan exceeding five years. While currently listed as a species of least concern, Ctenotus schomburgkii faces threats from habitat fragmentation, which can isolate populations, and the broader impacts of climate change. Temperature fluctuations directly affect their reproductive success, and changes in rainfall patterns can influence the availability of essential spinifex vegetation.
Source: Wikipedia ↗
Frequently Asked Questions
What is the scientific name for the barred wedge-snout ctenotus?
The scientific name for the barred wedge-snout ctenotus is Ctenotus schomburgkii. This binomial nomenclature helps distinguish it from other lizard species.
Where is Ctenotus schomburgkii found?
Ctenotus schomburgkii is distributed across a wide area of Australia, including central western New South Wales, Queensland, South Australia, the southern half of the Northern Territory, and the southern half of Western Australia.
What does the barred wedge-snout ctenotus eat?
This skink is primarily a termite eater, but it is also a generalist insectivore. Its diet includes spiders, crickets, grasshoppers, and beetles.
How long does Ctenotus schomburgkii live?
In the wild, Ctenotus schomburgkii lives for over five years. Females tend to have a longer lifespan than males.
What are the main predators of Ctenotus schomburgkii?
The sand goanna (Varanus gouldi) is a significant predator that digs them out of burrows. Cats are also known to prey on this species.
What are the conservation concerns for Ctenotus schomburgkii?
While listed as least-concern, habitat fragmentation negatively impacts populations. Climate change is also a risk, as it affects fecundity through temperature variations and influences the growth of favoured vegetation like spinifex.
Related Lizards
Ctenotus pantherinus
The leopard ctenotus (Ctenotus pantherinus) is a skink species found in the arid and semi-arid regions of central and western Australia. It is characterized by its brown or grey coloration with distinctive yellow/white spots outlined in black, and a tail nearly as long as its body. This fast-growing species is an insectivore, primarily feeding on termites and their larvae, and is oviparous, laying clutches of 4-7 eggs.
Varanus brevicauda
The short-tailed pygmy monitor, *Varanus brevicauda*, is the second smallest living monitor lizard globally, reaching a maximum length of 25 cm. This secretive, terrestrial species inhabits central Australia, burrowing in sandy loam and gravel in spinifex-dominated areas. It is a strictly carnivorous diurnal forager, known for its keen senses and bold predatory nature despite its small size.
Diplodactylus elderi
Strophurus elderi, commonly known as the jewelled gecko, is a terrestrial, nocturnal lizard found in the arid regions of central and north-western Australia. This moderately sized gecko is characterized by its dark, soft body with scattered white spots, a fleshy tail, and specialized digits for gripping spiny foliage. It plays a vital role in its ecosystem, primarily inhabiting spinifex grass hummocks.